Everyday Science Mcqs

The color of blood is red due to __________?A. Haemoglobin
B. Neutrophils
C. Esinophils
D. Hematocrit

Human blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color. Octopuses and horseshoe crabs have blue blood. This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue.

 

What is total area of the earth?

A. 510.94 million km²
B. 492.102 million km²
C. 392.023 million km²
D. 692.192 million km²

The Doppler’s effect is applicable for_________?

A. light waves only
B. sound waves only
C. Both Light waves and sound ways
D. None of these

An apparent change in the frequency of waves, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.
Hence, it is applicable for both sound and light waves.

SONAR is based on the principle of___________?

A. Echo
B. reverberation
C. resonance
D. None of these

SONAR stands for Sound Navigation and Ranging. SONAR works on the principle of reflection (echo) of sound waves from the object. It stands for Sound Navigation and Ranging.

Which planet is losing its atmosphere at faster than the earth?

A. Mecury
B. Venus
C. Mars
D. Jupiter

Underground water and the water on the earth’s surface is called ?A. Mezosphere
B. Ionosphere
C. Hydrosphere
D. None of these

A hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet’s hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers.

 

Short sightedness is due to__________?

A. Shifting of the iris
B. Elongation of eyeballs
C. Weakening of the retina
D. Weaker muscles

First controlled fission of an atom was carried out in ________ on 1938.

A. U.S
B. Germany
C. Russia
D. U.K

The first controlled fission of an atom was carried out in Germany in 1938. Nuclear fission is the splitting of the nucleus of the atom.

Lignite, bituminous & anthracite are different rank of _________ ?

A. Iron
B. Coal
C. Wood
D. None of these

which of the following is the most severe storm?

A. Hurricane
B. Tornado
C. Typhoon
D. None of these